No abstract available.
Ischemic Attack, Transient*

No abstract available.
Ischemic Attack, Transient* ; Stroke*

No abstract available.
Aneurysm ; Ischemic Attack, Transient ; Ventricular Septum

No abstract available.
Carotid Arteries* ; Carotid Stenosis* ; Dyskinesias ; Ischemic Attack, Transient*

No abstract available.
Ischemic Attack, Transient* ; Magnetic Resonance Imaging* ; Stroke, Lacunar*

Double atrial septum is very rare atrial septal malformation which has double layered atrial septum with persistent interatrial space between the two atria. Clinically, most cases of this anomaly are asymptomatic unless manifest as thromboembolic complications, such as stroke, or transient ischemic attack, that thrombus may be originated from this interatrial space. We report a case of a 69-year-old man who was diagnosed with isolated double atrial septum by transthoracic echocardiography.
Aged ; Atrial Septum* ; Echocardiography ; Humans ; Ischemic Attack, Transient ; Stroke ; Thrombosis

No abstract available.
Cerebral Amyloid Angiopathy* ; Cerebral Hemorrhage* ; Humans ; Ischemic Attack, Transient*

No abstract available.
Humans ; Infarction* ; Ischemic Attack, Transient* ; Lateral Medullary Syndrome ; Trigeminal Neuralgia*

BACKGROUND AND PURPOSE: The vertebral artery (VA) is important for the development of the transverse foramen (TF). Most studies of these structures have focused on anatomical anomalies. Therefore, we investigated quantitatively the association between the relative sizes of the TF and VA. METHODS: We recruited a consecutive series of subjects who underwent CT angiography to estimate the relative sizes of the VA and TF in axial source images. Two neurologists independently reviewed the axial CT images of 208 patients who had no history of transient ischemic attack or stroke. Averaged areas of the VA and TF were defined by the sum of the areas at each level from C3 to C6, divided by 4. Correlation analyses were adjusted for age, sex, and vascular risk factors. RESULTS: The mean age of the subjects was 53 years. The interobserver and intraobserver reliabilities of TF size were good. There was a linear relationship between the sizes of the VA and TF on each side (right side: r2=0.58, p<0.001; left side: r2=0.62, p<0.001). The area of the VA was significantly associated with that of the TF after adjusting for vascular risk factors. CONCLUSIONS: The size of the VA is strongly and linearly correlated with the size of the TF. These findings suggest that measurement of the TF and VA with CT angiography is a reliable method for evaluating VA diseases, and may provide new insight into the differentiation between VA hypoplasia and atherosclerosis of the VA.
Angiography ; Atherosclerosis ; Humans ; Ischemic Attack, Transient ; Stroke ; Vertebral Artery

BACKGROUND: Prehospital delay is a major obstacle for successful treatment of acute stroke. We investigated the annual change of prehospital delay and related factors in patients with acute ischemic stroke (AIS) or transient ischemic attack (TIA). METHODS: From prospective patient registry, demographic and clinical characteristics of patients who presented within 48 hours of symptom onset after AIS or TIA from 2005 to 2008 were analyzed. We compared the annual change of prehospital delay (time from symptom onset to hospital arrival) and the proportion of early arrival (EA-3, prehospital delay<3 h; EA-6, prehospital delay<6 h). We also investigated factors associated with prehospital delay and early arrival. RESULTS: Of 612 patients, 623 events of AIS or TIA were analyzed. The adjusted geometric mean (95% CI) of prehospital delay (hours) was 7.42 (6.07-9.06) in 2005, 8.18 (6.76-9.89) in 2006, 4.39 (3.50-5.51) in 2007, and 4.02 (3.10-5.22) in 2008 (p<0.01). The proportion of early arrival (year) was 23.6% (2005), 31% (2006), 58% (2007), 54% (2008) for EA-3 (p<0.001) and 38.8% (2005), 32.5% (2006), 51.6% (2007), 75% (2008) for EA-6 (p<0.001). Compared with 2006, the adjusted odds (95% CI) for early arrival were 1.54 (0.87-2.71) in 2005, 1.91 (1.11-3.30) in 2007, 2.29 (1.31-4.01) in 2008 for EA-3 and 1.37 (0.84-2.25) in 2005, 1.73 (1.06-2.81) in 2007, 2.03 (1.23-3.36) in 2008 for EA-6. Younger age, severe neurologic deficit, admission through emergency department, cardioembolic stroke, and TIA were also independently associated with early arrival. CONCLUSIONS: From 2005 to 2008, prehospital delay decreased and potential candidates for thrombolytic therapy increased significantly.
Emergencies ; Humans ; Ischemic Attack, Transient ; Neurologic Manifestations ; Stroke ; Thrombolytic Therapy